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Home › Gemstones › Natural Untreated Gemstones

Natural Untreated Gemstones

Discover genuine untreated gemstones selected for natural beauty, rarity, and authenticity.

Natural Untreated Gemstones Weight
Natural Untreated Gemstones Size
Natural Untreated Gemstones Clarity
Natural Untreated Gemstones Price
Natural Untreated Gemstones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color Natural Untreated Gemstones
Black Natural Untreated Gemstones
Blue Natural Untreated Gemstones
Brown Natural Untreated Gemstones
Golden Natural Untreated Gemstones
Gray Natural Untreated Gemstones
Green Natural Untreated Gemstones
Multicolor Natural Untreated Gemstones
Orange Natural Untreated Gemstones
Pink Natural Untreated Gemstones
Purple Natural Untreated Gemstones
Red Natural Untreated Gemstones
Turquoise Natural Untreated Gemstones
Violet Natural Untreated Gemstones
White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
Single
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Lots
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0.75ct Yellow Beryl, Oval, VVS-VS

0.75ct Yellow Beryl, Oval, VVS-VS

8 x 5.7 mm

$ 14.94

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4.89ct Pink Morganite, Oval, Transparent

4.89ct Pink Morganite, Oval, Transparent

12.7 x 10 mm

$ 48.70

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1.52ct Yellow Golden Beryl, Oval, VS

1.52ct Yellow Golden Beryl, Oval, VS

9 x 7 mm (calibrated)

$ 36.64

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2.12ctw Pink Morganite, Oval, VS

2.12ctw Pink Morganite, Oval, VS

8 x 6 mm (calibrated)

$ 92.91

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8.11ctw Pink Morganite, Round, Translucent

8.11ctw Pink Morganite, Round, Translucent

10 mm (calibrated)

$ 88.85

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4.80ct Pink Morganite, Oval, Transparent

4.80ct Pink Morganite, Oval, Transparent

14 x 10 mm (calibrated)

$ 19.92

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0.85ct Black Diamond, Round, Opaque
Diamond Product Video (668693)

0.85ct Black Diamond, Round, Opaque

5.5 mm (calibrated)

$ 677.28

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1.33ct Purple Spinel, Cushion, VS
Spinel Product Video (548658)

1.33ct Purple Spinel, Cushion, VS

6.3 x 6.1 mm

$ 99.35

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0.74ct Yellow Beryl, Oval, VVS-VS

0.74ct Yellow Beryl, Oval, VVS-VS

7 x 5 mm (calibrated)

$ 18.43

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0.79ct Purple Spinel, Cushion, VVS-VS

0.79ct Purple Spinel, Cushion, VVS-VS

6.1 x 4.8 mm

$ 28.24

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2.56ct Yellow Beryl, Oval, VS

2.56ct Yellow Beryl, Oval, VS

10 x 8 mm (calibrated)

$ 61.20

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3.11ct Pink Morganite, Round, Translucent

3.11ct Pink Morganite, Round, Translucent

9 mm (calibrated)

$ 33.73

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15.15ctw Black Spinel, Round, Opaque

15.15ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 49.80

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1.05ct Yellow Beryl, Trillion, VVS

1.05ct Yellow Beryl, Trillion, VVS

8 x 8 mm (calibrated)

$ 20.92

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0.82ct Yellow Beryl, Oval, VVS

0.82ct Yellow Beryl, Oval, VVS

7 x 5 mm (calibrated)

$ 16.33

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2.80ct Pink Morganite, Round, Transparent

2.80ct Pink Morganite, Round, Transparent

9 mm (calibrated)

$ 30.37

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0.98ct Black Diamond, Square, Opaque
Diamond Product Video (677843)

0.98ct Black Diamond, Square, Opaque

5 x 5 mm (calibrated)

$ 558.27

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0.65ct Yellow Beryl, Trillion, VVS

0.65ct Yellow Beryl, Trillion, VVS

7 x 7 mm (calibrated)

$ 12.95

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4.63ctw White Topaz, Cushion, VS

4.63ctw White Topaz, Cushion, VS

4.6 x 4.5 mm

$ 25.36

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1.20ct Brown Rutile Topaz, Pear Shape, Transparent

1.20ct Brown Rutile Topaz, Pear Shape, Transparent

8.8 x 5.7 mm

$ 24.90

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0.72ct Pink Morganite, Oval, VS

0.72ct Pink Morganite, Oval, VS

7.8 x 5.4 mm

$ 55.22

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0.78ct Gray Cat'S Eye Alexandrite, Oval, Opaque

0.78ct Gray Cat'S Eye Alexandrite, Oval, Opaque

5.7 x 3.9 mm

$ 161.85

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1.28ct Yellow Beryl, Trillion, VVS-VS

1.28ct Yellow Beryl, Trillion, VVS-VS

8 x 8 mm (calibrated)

$ 30.59

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3.68ct White Topaz, Round, VVS-VS

3.68ct White Topaz, Round, VVS-VS

9.5 mm (calibrated)

$ 32.38

View Gem
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Why Buy Natural Untreated Gemstones from GemSelect?

Why Choose Untreated Gemstones?

Untreated gemstones are valued for their natural color and clarity without artificial enhancement. Many buyers prefer these gems for authenticity, rarity, and long-term value.

Natural Loose Untreated Gems Online

Shop loose untreated gemstones online at GemSelect with confidence. Browse sapphires, rubies, spinels, aquamarine, garnet, tourmaline, and more with full disclosure.

Natural Untreated Gemstones for Jewelry and Collecting

Untreated Gemstones for Jewelry

Natural untreated gems are excellent for rings, earrings, pendants, and custom jewelry. Their original beauty makes every piece unique and meaningful.

Popular Untreated Gemstone Types

Popular choices include untreated sapphire, ruby, spinel, garnet, tourmaline, zircon, aquamarine, and many collector stones in a wide range of colors.

Certified Natural Gemstones

Many buyers choose untreated gemstones with gemological reports for added confidence. Certification can confirm identity and indicate whether treatments are present.

Collector Quality Untreated Gems

Collectors appreciate untreated gemstones because naturally fine examples are rarer than treated material. These stones can be especially desirable when color and clarity are strong.

Calibrated Untreated Gemstones

We also offer calibrated untreated gemstones in popular sizes suitable for standard jewelry settings, making custom designs easier and faster.

Worldwide Shipping from GemSelect

GemSelect offers secure online ordering, detailed product images, and worldwide delivery so you can shop untreated gemstones from anywhere.

Learn more about gemstone treatments, identification, and care on our Gemstone Information Pages.

FAQs

What does untreated gemstone mean?

An untreated gemstone has not undergone enhancement processes such as heating, dyeing, filling, coating, or diffusion to improve appearance.

Are untreated gemstones more valuable?

Often yes, especially in sapphire, ruby, and other premium gems where fine untreated stones are rarer than treated examples.

How can I verify a gemstone is untreated?

Independent laboratory certification is the best way to verify whether a gemstone is natural and untreated.

Which gemstones are commonly sold untreated?

Spinel, garnet, zircon, tourmaline, aquamarine, and some sapphires or rubies are often available untreated depending on source and quality.

Are all untreated gemstones natural?

Natural untreated gemstones are mined stones that have not been enhanced after cutting. Always buy from trusted sellers with clear disclosure.

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

All items were delivered on time with all items meeting or exceeding my expectations. Cut, clarity and color were very close to the photos and description.

Posted By Bob D in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

The website was very easy to use.

Posted By Garnet in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

I loved the selection of gemstones you have a to z

Posted By James in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

It's mostly good, only some item's are easier to find through the search than the menu

Posted By Wayne in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent options

Posted By CJ in February, 2026
Source: Bizrate
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